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U.S. District Court Invalidates Amgen Patent Claims Targeting PCSK9
Regeneron Pharmaceuticals, Inc. (NASDAQ: REGN) and Sanofi announced today that the U.S. District Court for the District of Delaware ruled in their favor and found as a matter of law that Amgen's asserted patent claims for antibodies targeting PCSK9 (proprotein convertase subtilisin/kexin type 9)